body, ul, h1, h2, p {
    padding: 0;
    margin: 0;
}
html {
    font-size: 10px;
}
html, body, #mailList {
    height: 100%;
    color: #555;
}
body {
    overflow-x: hidden;
}
#mailList {
    width: 100%; 
}
.head {
    width: 100%;
    height: 90px;
    line-height: 90px;
    position: fixed;
    top: 0;
    background-color: #fff;
    display: flex;
    justify-content: space-between;
    z-index: 5;
    background-image: url(/static/img/bg.png);
    background-size: cover; 
}
.head .logo {
    font-size: 50px;
    padding-left: 30px;
    color: #0f88eb;
    font-family: "幼圆";
}
.head .welcome { 
    font-size: 20px;
    font-family: "微软雅黑";
    display: inline-block;
    margin-right: 30px;
}
.head .img {
    display: inline-block;
    width: 75px;
    height: 73px;
    border-radius: 35px;
    vertical-align: middle;
    margin-left: 10px;
    background-color: #eee;
    overflow: hidden;
}
.head img {
    width: 100%;
    height: 100%;
}
.lside {
    width: 300px;
    height: 90%;
    position: fixed;
    left: 0;
    top: 90px;
    z-index: 5;
    background-color: #eee;
    padding: 3px;
    box-sizing: border-box;
}
.lside li {
    height: 50px;
    line-height: 50px;
    padding-left: 30px;
    margin-bottom: 2px;
    box-sizing: border-box;
    font-size: 17px;
    border-top: none;
    cursor: pointer;
    background-color: #fff;
    list-style: none;
}
.lside li i {
    margin-right: 8px;
}
.lside li a {
    color: #555;
    text-decoration: none;
    width: 100%;
    height: 100%;
    display: inline-block;
} 
.rside {
    width: 100%;
    height: 100%;
    background-color: #f7fafc;
    position: absolute; 
    padding-left: 300px;
    box-sizing: border-box;
    z-index: 1;  
    overflow-x: hidden;
}
li.act {
    background-color: #0f88eb;
}
li.act a {
    color: #fff;
}
.name {
    display: inline-block;
    max-width: 118px;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    vertical-align: middle;
}
.out {
    position: absolute;
    bottom: 41px;
    right: 16px;
    cursor: pointer;
}